Kentucky Sen. Rand Paul has tested positive for COVID-19. Here are all the members of Congress who have been infected with the novel coronavirus.

REUTERS/Eric Thayer

The US Capitol subway system.

• At least three congressional lawmakers have tested positive for the novel coronavirus as of Sunday, March 22.
• Offices on Capitol Hill were closed and numerous congressional staffers have been sent back home as public areas and businesses in the US widely initiated a temporary lockdown.
• Here are the lawmakers serving in Congress who have tested positive for COVID-19.
• Visit Business Insider's homepage for more stories.

At least three congressional lawmakers have tested positive for COVID-19, the disease caused by the novel coronavirus, as of Sunday.

Offices on Capitol Hill were closed and numerous congressional staffers have been sent back home as public areas and businesses in the US widely initiated a temporary lockdown to prevent the disease from spreading.

As of Sunday evening, at least 33,400 confirmed cases were recorded in the US, with patients ranging from the contiguous states and US territories, including Guam, Puerto Rico, and the US Virgin Islands. There have also been upwards of 400 deaths.

Lawmakers from both parties have self-quarantined after potentially coming in contact with someone who tested positive for COVID-19. Those lawmakers included Republican Sens. Rick Scott of Florida, Ted Cruz of Texas, and Lindsey Graham of South Carolina, among others.

One person who tested positive interacted with several other Republicans at the Conservative Political Action Conference in late February, prompting additional tests for congressional leaders and White House officials.

In a statement on March 18, the congressional physician said he was "carefully monitoring" the situation.

"My office has taken appropriate actions to identify any individuals who require additional monitoring for periods of quarantine," the Office of Attending Physician said in his statement, adding his office "identified the offices and locations that were found to be at risk and these have been treated ... using CDC approved cleaning methods."

Here are all the lawmakers serving in Congress who have tested positive for the coronavirus so far: